碳鋼輸送管線應用For Transportation in petroleum and natural gas industries標準API 5L PSL1/PSL2 Gr.A,Gr.B,X42,X46,X52,X56,X60,X65,X70了解更多
鋼管石油天然氣套管長度R1, R2, R3標準API 5CT J55, API 5A, 5AX, 5AC, N80-1, V80-Q, L80-1, L80-9Cr, L80-13Cr, C90, C95, P110, Q125了解更多